57946-56-2Relevant articles and documents
Anion ligand promoted selective C-F bond reductive elimination enables C(sp2)-H fluorination
Mao, Yang-Jie,Luo, Gen,Hao, Hong-Yan,Xu, Zhen-Yuan,Lou, Shao-Jie,Xu, Dan-Qian
supporting information, p. 14458 - 14461 (2019/12/09)
A detailed mechanism study on the anion ligand promoted selective C-H bond fluorination is reported. The role of the anion ligand has been clarified by experimental evidence and DFT calculations. Moreover, the nitrate promoted C-F bond reductive elimination enabled a selective C-H bond fluorination of various symmetric and asymmetric azobenzenes to access diverse o-fluoroanilines.
Under the conditions of a solvent-free method of hydrogenation to synthesize haloarylamine
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Paragraph 0050-0053, (2017/03/21)
The invention provides a method for synthesising halogenated aromatic amine through hydrogenation in a solvent-free condition. The method comprises the following step of: carrying out a liquid-phase hydrogenation reaction on the halogenated aromatic nitro compound shown in formula (I) under the action of hydrogen, in the absence of a solvent and a dehalogenation inhibitor under the action of a carbon-supported large-particle-size precious metal catalyst to prepare the halogenated aromatic amine shown in formula (II). The method provided by the invention is capable of achieving the effect of inhibiting a hydrogenation dehalogenation side reaction in the case of not adding a dehalogenation inhibitor, is high in target product selectivity, and is capable of remarkably increasing the reaction speed.
Facile synthesis and herbicidal activities of new isoxazole derivatives via 1,3-dipolar cycloaddition reaction
Zhang, Chuan-Yu,Wang, Bao-Lei,Liu, Xing-Hai,Li, Yong-Hong,Wang, Su-Hua,Li, Zheng-Ming
experimental part, p. 397 - 404 (2010/03/24)
A series of cycloadducts via 1,3-dipolar cycloaddition reactions of generated nitrile oxides with N-(4-chloro-2-fluorophenyl) maleimides were described. The reaction of N-(4-chloro-2-fluorophenyl) maleimides with nitrile oxides gave 3,5-diaryl-3a,6a-dihydropyrroio[3,4-d]isoxazole-4,6-diones through syn-addition pattern. The title compounds were characterized by 1H NMR, IR, MS, and elemental analysis or HRMS. The single crystal structure of 6i was determined by X-ray diffraction. The herbicidal activities of the title compounds were evaluated. Some of them exhibited certain herbicidal activities against barnyardgrass and rape.